Climate change in the coastal ocean: shifts in pelagic productivity and regionally diverging dynamics of coastal ecosystems

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dc.contributor.authorNavarrete, Sergio A.
dc.contributor.authorBarahona, Mario
dc.contributor.authorWeidberg, Nicolas
dc.contributor.authorBroitman, Bernardo R.
dc.date.accessioned2025-01-20T21:12:04Z
dc.date.available2025-01-20T21:12:04Z
dc.date.issued2022
dc.description.abstractClimate change has led to intensification and poleward migration of the Southeastern Pacific Anticyclone, forcing diverging regions of increasing, equatorward and decreasing, poleward coastal phytoplankton productivity along the Humboldt Upwelling Ecosystem, and a transition zone around 31 degrees S. Using a 20-year dataset of barnacle larval recruitment and adult abundances, we show that striking increases in larval arrival have occurred since 1999 in the region of higher productivity, while slower but significantly negative trends dominate poleward of 30 degrees S, where years of recruitment failure are now common. Rapid increases in benthic adults result from fast recruitment-stock feedbacks following increased recruitment. Slower population declines in the decreased productivity region may result from aging but still reproducing adults that provide temporary insurance against population collapses. Thus, in this region of the ocean where surface waters have been cooling down, climate change is transforming coastal pelagic and benthic ecosystems through altering primary productivity, which seems to propagate up the food web at rates modulated by stock-recruitment feedbacks and storage effects. Slower effects of downward productivity warn us that poleward stocks may be closer to collapse than current abundances may suggest.
dc.fuente.origenWOS
dc.identifier.doi10.1098/rspb.2021.2772
dc.identifier.eissn1471-2954
dc.identifier.issn0962-8452
dc.identifier.urihttps://doi.org/10.1098/rspb.2021.2772
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/93642
dc.identifier.wosidWOS:000766140800008
dc.issue.numero1970
dc.language.isoen
dc.revistaProceedings of the royal society b-biological sciences
dc.rightsacceso restringido
dc.subjectbenthic-pelagic coupling
dc.subjectbottom-up regulation
dc.subjectclimate change
dc.subjectpopulation regulation
dc.subjectHumboldt Upwelling Ecosystem
dc.subjectstock-recruitment and storage effects
dc.subject.ods14 Life Below Water
dc.subject.ods13 Climate Action
dc.subject.ods15 Life on Land
dc.subject.odspa14 Vida submarina
dc.subject.odspa13 Acción por el clima
dc.subject.odspa15 Vida de ecosistemas terrestres
dc.titleClimate change in the coastal ocean: shifts in pelagic productivity and regionally diverging dynamics of coastal ecosystems
dc.typeartículo
dc.volumen289
sipa.indexWOS
sipa.trazabilidadWOS;2025-01-12
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